Blind-slatting machine



(N0 Modelfl J. A. EDGGOMB.

Patented Mar. 15, 1898.

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BLIND SLATTING MACHINE.

Patented Mar. v15, 1898.

UNTTED STATES PATENT UTFTCE.

JAMES ANALDO EDGCOMB, OF KNOXVILLE, PENNSYLVANIA.

BLlND-SLATTING MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 600,524, dated March 15, 1898.

A lication filed OctoberlS, 1897. Serial No. 655,611. (No model.)

To ail whom it may concern.-

Be it known that I, JAMEs ANALDO Ene- COMB, a citizen of the United States, residing at Knoxville, in the county of Tioga and State of Pennsylvania, have invented certain new and useful Improvements in Blind-Slatting Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in blind-slatting Inachines; and it has for its object the provision of a simple, efficient, and durable machine of this character of few parts and easily operated.

A further and essential object of the present invention resides in the adjusting means employed, whereby the device may be readily adjusted to accommodate blinds of varying lengths and rabbeted or plain rails of different width.

The invention relates more particularly to that class of blind-slatting machines which are designed to be placed within the clamping-frame used in placing pivoted slats in blinds.

To these ends and to such others as the invention may pertain the same consists in the novel construction and in the peculiar combination and arrangement of parts, all as more fully hereinafter described, shown in the accompanying drawings, and then specifically defined in the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this specification, like letters of reference indicating the same parts throughout the several views, and in which drawings Figure 1 is a side elevation of a portion of one of the slat-holding plates. Fig. 2 is a central longitudinal vertical section taken through a portion of the machine. Fig. 3 is an end elevation. Fig. 4 is an enlarged detail view, in side elevation, of a portion of the slat-holdingplates, showing the adj usting features. Fig. 5 is a like View showing the adjusting feature which adapts the machine for use in connection with rabbeted or plain rails of difierent widths.

Reference now being had to the details of the drawings by letter, A A represent two metallic plates which are preferably of the length of the shortest blinds which are to be slatted. These plates extend longitudinally of the machine, being separated a distance of afew inches and being bolted or otherwisesecured to the uprights D at the ends of the transverse plate of casting D, which in turn is secured to the brackets G G, carried upon the standards or supports F F. These plates A are provided throughout substantially their entire length with dovetailed notches O C, the distances between said notches corresponding with the distances between the pivotal centers of the blind-slats to be placed therein. The upper edges of the plates between each two adjoining notches are slightly inclined or beveled, as shown, the angle of inclination being the same throughout the entire series of spaces between the notches, as is clearly shown in Fig. 1 of the drawings.

B B are plates which in general form correspond with the form of the plates A A; but the plates B, which are held normally in contact with the plates A, are adapted to be moved or slid longitudinally. A series of openings to a is provided in each of the plates B for a purpose which will presently appear.

Plates E E are provided with longitudinal slots H, the edges of the slots being slightly undercut or beveled to accommodate the 'headed end I of the bolt I, which bolt is passed through a plate J and at its outer end is provided with a milled button or disk K, by means of which the bolt may be turned, as desired, when it is found desirable to adjust the plate J longitudinally, as will be readily understood. One end of the plate J is provided with a spring-arn1 J, carrying at its extreme free end a pin or projection which is adapted to engage the holes a in the notched slatholding plate B, the tension of the springarm J serving to normally hold the pin at the extreme limit of its inward throw. A suitable handle or head L serves as a convenient means whereby the pin may be raised out of engagement with the hole in the plate B when it is desired to adjust the plate B longitudinally.

A vertically-disposed slot M, through which is passed a headed bolt N, having a button or disk N, affords convenient means whereby the plate B may be adjusted vertically.

In order to accommodate the device to rabbeted rails of different widths, a longitudinally-adjustable plate or block 0 is provided, said block or plate having a longitudinal groove or slot P, through which is passed the shank of the adjusting bolt P, having a milled disk Q at its outer end.

From the foregoing description the operation of the device will be at once evident to those skilled in the art to which the invention pertains.

The device is placed within the clampingframe, which is used in assembling the several parts of the blind-frame and is adjusted to conform to the length of the blind. The operator then takes in his hands the series of slats which have previously been attached to the rod R, and, by laying the faces of the slats upon the upper edges of the notched plates A and B, as shown at the extreme left in Fig. 2 of the drawings, he raises the rod R and at the same time imparts a forward movement to the same, thus causing the edges of the slats to drop into the notches in the plates, when by moving the rod a trifling distance farther the slats will be caused to assume vertical positions upon their edges and will be in position to have the pintles at the ends of the slats engage the openings provided for their reception in the inner edges of the side rails of the blind.

It will be seen that the device may be quickly and easily adjusted to conform to blinds of different lengths and that provision is had whereby rabbeted rails of different widths may be employed.

Having thus described my invention,what

I claim to be new, and desire to secure by Letters Patent, is

1. In ablind-slatting machine, two slat-supporting plates, provided wit-h a series of dovetailed notches, extending throughout the entire length of the plates, the upper edges of the plates between the notches being inclined or beveled, substantially as described, and for the purpose specified.

2. In a blind-slatting machine of the character described, the combination with the main frame of a slat-supporting plate, provided with a series of dovetailed notches, the spaces between the notches being beveled'at their upper edges as described, a movable slatsupporting plate, having a series of notches coincident with the notches in the fixed plate, and adjusting mechanism substantially as described, whereby the movable plate may be adjusted longitudinally, substantially as shown and described, and for the purpose specified.

3. In a blind-slattin g machine of the character described, the slat-supporting plates provided with dovetailed notches, one set of plates being fixed and the other set longitudinally movable, and spring-actuated pawls adapted to lock the movable plates in their adjusted positions, substantially as described, and for the purpose specified.

4. In a blind-slatting machine of the character described ,the fixed and the movable slatsupporting plates, the adjusting and locking mechanism, whereby the movable plates may be adjusted relative to the fixed plates and the adjustable block 0 adapted to be moved longitudinally of the frame and locked in its adjusted position, whereby rabbeted rails of different widths may be clamped, substantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES ANALDO EDGCOMB.

Witnesses:

A. E. EDGCOMB, D. L. FREEBORN. 

